steve lamar, sierra's father, and a few volunteers spent the afternoon getting ready for arr. news conference tomorrow. for the whole lamar family, the last year has been rough. >> missing sierra, frustration, not knowing what happened to her and that part has made it a long year. >> tomorrow marks one year since 15-year-old sierra lamar disappeared. she was supposed to catch a bus to school at this intersection, but she never did. sierra's mother, marlene, noticed the teen was missing when she didn't come home from school that afternoon. >> we checked marlene's again and saw a message from the school that she was ab -- absent that day. atnt.houldn't have been that was weird. at that point we called the quickly a full-fledged search was launched with dozens turning out and teams combing the area. in a field just yards from her school bus stop, her clothes were found folded neatly in a bag, but she remains missing. >> i don't think any of us ever thought for a moment that we would be in this position now. the tragedy of it all is -- one of the tragedies is that there is somebod